Amino Acids/ Protiens
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1
What is the general structure of amino acids?
2
What are smaller protiens called?
Polypeptides
3
Whats the formula to find out the number of peptide bonds?
Num of Amino Acids - 1
4
Whats the test for Protiens/ peptide bonds?
Add Biruet solution
The sample will turn Lilac in colour for a postive test
The sample will turn Lilac in colour for a postive test
5
What type of reaction happens between amino acids?
Condensation reactions
6
What is the name of A 2AA bonded together and 3AA
2AA = Dipeptide
3AA = Tripeptide
3AA = Tripeptide
7
Where is a peptide bond found?
Between the Carboxyl group and the Amine group
8
What are the 4 levels of protein structure?
Primary, Secondary, Tertiary, Quanternary
9
Where are the hydrogen bonds in proteins?
Between the Amine group hydrogen atom and the Carboxyl group oxygen atom
10
Describe Primary structure proteins
An order of amino acids linked by peptide bonds to form a polypeptide chain
11
Describe Secondary structure proteins
-The coiling of the primary polypeptide chain to form a helix
-Where the helix is held toghet by hydrogen bonds between the carboxyl and amine groups of amino acids
-Where the helix is held toghet by hydrogen bonds between the carboxyl and amine groups of amino acids
12
Describe Tertiary structure proteins
-The folding and twising of polypeptide chain to produce a specific 3D shape
-Held together by 3 bond types between the R groups of the amino acids
-Held together by 3 bond types between the R groups of the amino acids
13
Where are hydrogen bonds formed in teriary proteins?
Formed between 2 amino acids with R groups that contain OH groups (hyrdoxyl NOT carboxyl)
14
Where are ionic bonds formed in teriary proteins?
Formed between 2 amino acids with R groups that contain a charge
15
Where are disulphide bonds formed in teriary proteins?
Formed between 2 amino acids with R groups that contain a sulphur atom
16
Describe Quanternary structure proteins
Proteins that have more than one polypeptide chain working together as a functional macromolecule (e.g. haemoglobin)
17
What are 2 examples of teriary protiens?
Enzymes and Hormones
18
What are 3 examples of quaternary proteins?
-Haemoglobin
-Antibodies
-Insulin
-Antibodies
-Insulin
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